currently i usually look at mahou showtime when i want to see what episodes should be released soon,
but it will be much nicer to have such functionality in taiga directly,

the most "easy"(will still require quite a bit of work i suspect) would be keep the air time per anime and thus just show it similarly to the list which currently shows anime that should start soon.

the more complex, but more interesting option would be to heuristically calculate the likely release time of the next episode( for example if previous episodes were released between 18:00 to 19:30 UTC on a Wednesday, it is fairly likely the next episode will be released at a similar time.).